linux.git/arch/powerpc/perf, branch v3.13.6

powerpc/perf: Fix handling of FAB events

2013-10-03T07:25:38+00:00

Commit 4df4899 "Add power8 EBB support" included a bug in the handling
of the FAB_CRESP_MATCH and FAB_TYPE_MATCH fields.

These values are pulled out of the event code using EVENT_THR_CTL_SHIFT,
however we were then or'ing that value directly into MMCR1.

This meant we were failing to set the FAB fields correctly, and also
potentially corrupting the value for PMC4SEL. Leading to no counts for
the FAB events and incorrect counts for PMC4.

The fix is simply to shift left the FAB value correctly before or'ing it
with MMCR1.

Reported-by: Sooraj Ravindran Nair 
Signed-off-by: Michael Ellerman 
Cc:  # 3.10+
Signed-off-by: Benjamin Herrenschmidt

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-09-06T17:49:42+00:00

Pull powerpc updates from Ben Herrenschmidt:
 "Here's the powerpc batch for this merge window.  Some of the
  highlights are:

   - A bunch of endian fixes ! We don't have full LE support yet in that
     release but this contains a lot of fixes all over arch/powerpc to
     use the proper accessors, call the firmware with the right endian
     mode, etc...

   - A few updates to our "powernv" platform (non-virtualized, the one
     to run KVM on), among other, support for bridging the P8 LPC bus
     for UARTs, support and some EEH fixes.

   - Some mpc51xx clock API cleanups in preparation for a clock API
     overhaul

   - A pile of cleanups of our old math emulation code, including better
     support for using it to emulate optional FP instructions on
     embedded chips that otherwise have a HW FPU.

   - Some infrastructure in selftest, for powerpc now, but could be
     generalized, initially used by some tests for our perf instruction
     counting code.

   - A pile of fixes for hotplug on pseries (that was seriously
     bitrotting)

   - The usual slew of freescale embedded updates, new boards, 64-bit
     hiberation support, e6500 core PMU support, etc..."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
  powerpc: Correct FSCR bit definitions
  powerpc/xmon: Fix printing of set of CPUs in xmon
  powerpc/pseries: Move lparcfg.c to platforms/pseries
  powerpc/powernv: Return secondary CPUs to firmware on kexec
  powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
  powerpc: Cleanup handling of the DSCR bit in the FSCR register
  powerpc/pseries: Child nodes are not detached by dlpar_detach_node
  powerpc/pseries: Add mising of_node_put in delete_dt_node
  powerpc/pseries: Make dlpar_configure_connector parent node aware
  powerpc/pseries: Do all node initialization in dlpar_parse_cc_node
  powerpc/pseries: Fix parsing of initial node path in update_dt_node
  powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header
  powerpc/pseries: Fix over writing of rtas return code in update_dt_node
  powerpc/pseries: Fix creation of loop in device node property list
  powerpc: Skip emulating & leave interrupts off for kernel program checks
  powerpc: Add more exception trampolines for hypervisor exceptions
  powerpc: Fix location and rename exception trampolines
  powerpc: Add more trap names to xmon
  powerpc/pseries: Add a warning in the case of cross-cpu VPA registration
  powerpc: Update the 00-Index in Documentation/powerpc
  ...

Merge tag 'v3.11-rc5' into perf/core

2013-08-15T08:00:09+00:00

Merge Linux 3.11-rc5, to sync up with the latest upstream fixes since -rc1.

Signed-off-by: Ingo Molnar

powerpc: Fix a number of sparse warnings

2013-08-14T01:50:24+00:00

Address some of the trivial sparse warnings in arch/powerpc.

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt

Merge remote-tracking branch 'scott/next' into next

2013-08-09T06:01:40+00:00

Merge some Freescale updates from Scott Wood

powerpc/perf: Add e6500 PMU driver

2013-08-07T23:38:04+00:00

e6500 core performance monitors has the following features:
- 6 performance monitor counters
- 512 events supported
- no threshold events

e6500 PMU has more specific events (Data L1 cache misses, Instruction L1
cache misses, etc ) than e500 PMU (which only had Data L1 cache reloads,
etc). Where available, the more specific events have been used which will
produce slightly different results than e500 PMU equivalents.

Signed-off-by: Priyanka Jain 
Signed-off-by: Lijun Pan 
Signed-off-by: Scott Wood

powerpc/perf: add 2 additional performance monitor counters for e6500 core

2013-08-07T23:38:03+00:00

There are 6 counters in e6500 core instead of 4 in e500 core.

Signed-off-by: Lijun Pan 
Signed-off-by: Scott Wood

powerpc/perf: increase the perf HW events to 6

2013-08-07T23:38:03+00:00

This change is required after the e6500 perf support has been added.
There are 6 counters in e6500 core instead of 4 in e500 core and
the MAX_HWEVENTS counter should be changed accordingly from 4 to 6.
Added also runtime check for counters overflow.

Signed-off-by: Catalin Udma 
Signed-off-by: Lijun Pan 
Signed-off-by: Scott Wood

powerpc/perf: Export PERF_EVENT_CONFIG_EBB_SHIFT to userspace

2013-08-01T03:11:46+00:00

We use bit 63 of the event code for userspace to request that the event
be counted using EBB (Event Based Branches). Export this value, making
it part of the API - though only on processors that support EBB.

Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/perf: BHRB filter configuration should follow the task

2013-07-24T04:42:34+00:00

When the task moves around the system, the corresponding cpuhw
per cpu strcuture should be popullated with the BHRB filter
request value so that PMU could be configured appropriately with
that during the next call into power_pmu_enable().

Signed-off-by: Anshuman Khandual 
Acked-by: Michael Neuling 
Signed-off-by: Benjamin Herrenschmidt